Bottle cap

ABSTRACT

Disclosed herein is a bottle cap. The bottle cap includes an inner lower cap which is coupled to a bottle and has on a lower end thereof a protruding breaking part, an inner upper cap which is coupled to an upper portion of the inner lower cap and moves a push cap downwards through a screw-type fastening method when the inner upper cap is rotated, and the push cap which serves as an additive holding member and has on a bottom thereof a thin-plate-type stopper. The bottle cap includes an outer protective cap which has a support tube therein so that the inner upper cap is fitted into the support tube in such a way as to rotate along with the outer protective cap, and covers an upper end of the inner upper cap and a surface of the bottle. A frictional vibration plate rubs against a frictional plate of the outer protective cap to produce sound of friction, thus indicating a time at which an additive starts to drop into the bottle, because the thin-plate-type stopper is broken, when the inner upper cap moves the push cap down, so that the push and turn screw is disengaged from the hook screw and the inner upper cap moves up.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates generally to a bottle cap and, moreparticularly, to a bottle cap, in which an outer protective cap,integrally covering a cap containing an additive therein and the uppersurface of a bottle, is rotated to move a push cap downwards, thusadding the additive to contents in the bottle, and simultaneously aninner upper cap moves upwards, so that a vibration plate rubs againstthe inner surface of the outer protective cap, thus indicating the timeat which the additive starts to be added to the contents, and in which atoy is coupled to the outer protective cap as desired, thus affordingvarious pleasure to a user.

2. Description of the Related Art

There has been proposed a bottle cap, which serves as a holding memberfor holding an additive therein and is constructed so that a bottom ofthe cap is torn off by a protruding breaking part when the cap movesdownwards, thus causing the additive to be added to contents in abottle. However, such a bottle cap simply adds the additive to thecontents in the bottle. The conventional bottle cap is problematic inthat a user does not precisely know the time at which the additive inthe holding member starts to be added to the contents in the bottle.

SUMMARY OF THE INVENTION

Accordingly, the present invention has been made keeping in mind theabove problem occurring in the prior art, and an object of the presentinvention is to provide a bottle cap, which is constructed so that aninner upper cap is turned together when an outer protective cap isturned, and a thin-plate-type stopper, forming the bottom of a push cap,is broken by the turning force, thus allowing an additive in the cap tobe easily added to the contents of a bottle.

Another object of the present invention is to provide a bottle cap thatfunctions as a plaything when an additional toy is coupled to an outerprotective cap.

In order to accomplish the above objects, the present invention providesa bottle cap, having an inner lower cap coupled to a bottle and havingon a lower end thereof a protruding breaking part, an inner upper capcoupled to an upper portion of the inner lower cap and moving a push capdownwards through a screw-type fastening method when the inner upper capis rotated, the push cap serving as an additive holding member andhaving on a bottom thereof a thin-plate-type stopper, an outerprotective cap having a support tube therein so that the inner upper capis fitted into the support tube in such a way as to rotate along withthe outer protective cap, the outer protective cap covering an upper endof the inner upper cap and a surface of the bottle, and a frictionalvibration plate rubbing against a frictional plate of the outerprotective cap to produce sound of friction, thus indicating a time atwhich an additive starts to drop into the bottle, because thethin-plate-type stopper is broken, when the inner upper cap moves thepush cap down, so that the push and turn screw is disengaged from thehook screw and the inner upper cap moves up.

Therefore, the present invention provides a bottle cap, in which anouter protective cap is turned so that an inner upper cap is rotatedalong with the outer protective cap, thus adding an additive to thecontents in a bottle, and which makes a sound when rotation has beencompleted, so that a user can be made aware of the time at which theaddition starts using a sound, thus providing convenience to a user.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features and advantages of the presentinvention will be more clearly understood from the following detaileddescription taken in conjunction with the accompanying drawings, inwhich:

FIG. 1 is a sectional view showing a bottle cap, according to the firstembodiment of the present invention;

FIG. 2 is a sectional view showing the use of the bottle cap of FIG. 1;

FIG. 3 is a sectional view showing a bottle cap, according to the secondembodiment of the present invention;

FIG. 4 is a sectional view showing the use of the bottle cap of FIG. 3;

FIG. 5 is a sectional view showing a bottle cap, according to the thirdembodiment of the present invention;

FIG. 6 is a sectional view showing the use of the bottle cap of FIG. 5,in which an additive is added to contents in a bottle;

FIG. 7 is a sectional view showing the use of the bottle cap accordingto the third embodiment of the present invention; and

FIG. 8 is a sectional view showing inner caps of the bottle cap,according to the third embodiment of the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

Reference now should be made to the drawings, in which the samereference numerals are used throughout the different drawings todesignate the same or similar components.

FIGS. 1 and 2 are sectional views showing a bottle cap, according to thefirst embodiment of the present invention, FIG. 3 is a sectional viewshowing a bottle cap, according to the second embodiment of the presentinvention, FIG. 4 is a sectional view showing the use of the bottle capof FIG. 3, FIG. 5 is a sectional view showing a bottle cap, according tothe third embodiment of the present invention, FIG. 6 is a sectionalview showing the use of the bottle cap of FIG. 5, in which an additiveis added to contents in a bottle, FIG. 7 is a sectional view showing theuse of the bottle cap according to the third embodiment of the presentinvention, and FIG. 8 is a sectional view showing inner caps of thebottle cap, according to the third embodiment of the present invention.

As shown in the drawings, the bottle cap of the present inventionincludes an inner lower cap 120, an inner upper cap 130, a push cap 140,an outer protective cap 150, and a frictional vibration plate 139.

The inner lower cap 120 is fastened to an inlet of a bottle 12 usinghooks 14 and 127 and a fastening groove 15. Protruding breaking parts124-3 are provided on the lower end of the inner lower cap 120.

The inner upper cap 130 is coupled to the upper portion of the innerlower cap 120. When the inner upper cap 130 rotates in the direction inwhich a hook screw 136-1 is disengaged from a push and turn screw 125-1,a tamper resistant band 136-2 of the inner upper cap 130 is tom off, andthe push cap 140, positioned in the inner upper cap 130, is moveddownwards through a screw-type fastening method.

The push cap 140 serves as an additive holding member, and has on abottom thereof a thin-plate-type stopper 129.

The outer protective cap 150 covers the upper end of the inner upper cap130 and a surface of the bottle 12, and has a support tube 152 therein.The inner upper cap 130 is fitted into the support tube 152 in such away as to rotate along with the outer protective cap 150.

The frictional vibration plate 139 rubs against a frictional plate 153of the outer protective cap 150 to produce the sound of friction, thusindicating the time at which an additive starts to be added to thecontents in the bottle 12, because the thin-plate-type stopper 129 isbroken when the inner upper cap 130 moves the push cap 140 down, so thatthe push and turn screw 125-1 is disengaged from the hook screw 136-1and the inner upper cap 130 moves up.

A coaxial tube 144, which serves as a straw, is axially placed on thecenter of the push cap 140, and an upper straw cover 137 is provided onthe upper end of the coaxial tube 144, such that the contents in thebottle 12 are discharged through the center of the upper end of theinner upper cap 130 via a straw.

A hole 155 is formed in an upper portion of the outer protective cap150, and passes the sound of friction to the exterior. The frictionalsound is made by the vibration plate 139 when the push cap 140 movesdown and the inner upper cap 130 moves up.

A bottle cap according to the second embodiment of the present inventionis shown in FIGS. 3 and 4. As shown in the drawings, an upper portion ofthe outer protective cap 150 comprises a separable cap 156, which isopened so that the upper straw cover 137 is exposed to the exterior. Theseparable cap 156 is supported at the lower edge thereof by a capsupport protrusion 157.

According to the third embodiment of the invention, as shown in FIGS. 5to 8, a bottle cap includes an inner lower cap 20, an inner upper cap30, a push cap 40, an outer protective cap 150, and a frictionalvibration plate 139.

The inner lower cap 20 is coupled to a bottle 12, and has on a lower endthereof a protruding breaking part 24-3.

The inner upper cap 30 is coupled to the upper portion of the innerlower cap 20, and moves the push cap 40 downwards through a screw-typefastening method when the inner upper cap 30 is rotated.

The push cap 40 serves as an additive holding member, and has on abottom thereof a thin-plate-type stopper 29.

The outer protective cap 150 covers the inner upper cap 30 and a surfaceof the bottle 12 such that the inner upper cap 30, positioned in theouter protective cap 150, rotates together with the outer protective cap150.

The frictional vibration plate 139 rubs against a frictional plate 153of the outer protective cap 150 to produce the sound of friction, thusindicating the time at which the additive starts to be added to thecontents in the bottle 12, because the thin-plate-type stopper 29 isbroken when the inner upper cap 30 moves the push cap ⁴⁰ down, so that apush and turn screw 25-2 is disengaged from a hook screw 36-1 and theinner upper cap 30 moves up by the engagement of the inner upper cap 30with the push cap 40 through a screw-type fastening method.

The bottle cap further includes a decorative toy 160, which isintegrally fitted over the upper portion of the outer protective cap 150via a fitting means.

The fitting means includes a fitting projection 162 which protrudes fromthe toy 160 and has on an end thereof a hook, and a toy fitting hole 159which is provided at a predetermined position in the outer protectivecap 150, so that the fitting projection 162 is fitted into the fittinghole 159, thus providing force for supporting the toy 160.

The fitting means further includes a support hook 161, which is bentinwards from the lower end of the toy 160, and a toy support groovewhich is provided at a predetermined position in the outer protectivecap 150, so that the support hook 161 is inserted into the toy supportgroove.

Further, a support step 151 is provided on the inner surface of thelower end of a support tube 152, and is seated between a lower end step20-4, forming the lower end of an outer wall 20-1 of the inner lower cap20, and a tamper resistant band 20-2, thus supporting the inner lowercap 20.

As described above, the present invention provides a bottle cap, whichis constructed so that an inner upper cap is turned together when anouter protective cap is turned, and a thin-plate-type stopper, formingthe bottom of a push cap, is broken by the turning force, thus allowingan additive in the cap to be easily added to the contents of a bottle.

Further, the present invention provides a bottle cap that functions as aplaything when an additional toy is coupled to an outer protective cap.

Although the preferred embodiments of the present invention have beendisclosed for illustrative purposes, those skilled in the art willappreciate that various modifications, additions and substitutions arepossible, without departing from the scope and spirit of the inventionas disclosed in the accompanying claims.

1. A bottle cap, having an inner lower cap coupled to a bottle andhaving on a lower end thereof a protruding breaking part, an inner uppercap coupled to an upper portion of the inner lower cap and moving a pushcap downwards through a screw-type fastening method when the inner uppercap is rotated, and the push cap serving as an additive holding memberand having on a bottom thereof a thin-plate-type stopper, the bottle capcomprising: an outer protective cap having a support tube therein sothat the inner upper cap is fitted into the support tube in such a wayas to rotate along with the outer protective cap, the outer protectivecap covering an upper end of the inner upper cap and a surface of thebottle; and a frictional vibration plate rubbing against a frictionalplate of the outer protective cap to produce sound of friction, thusindicating a time at which an additive starts to drop into the bottle,because the thin-plate-type stopper is broken, when the inner upper capmoves the push cap down, so that the push and turn screw is disengagedfrom the hook screw and the inner upper cap moves up.
 2. The bottle capas set forth in claim 1, wherein a coaxial tube, serving as a straw, isaxially placed on a center of the push cap, and an upper straw cover isprovided on an upper end of the coaxial tube such that contents in thebottle are discharged through a center of an upper end of the innerupper cap via a straw.
 3. The bottle cap as set forth in claim 1,further comprising: a hole formed in an upper portion of the outerprotective cap, and passing sound of friction to an exterior, the soundbeing made by the vibration plate when the push cap moves down and theinner upper cap moves up.
 4. The bottle cap as set forth in claim 1,wherein an upper portion of the outer protective cap comprises aseparable cap which is opened so that the upper straw cover is exposedto the exterior, with the separable cap being supported at a lower edgethereof by a cap support protrusion.
 5. A bottle cap, having an innerlower cap coupled to a bottle and having on a lower end thereof aprotruding breaking part, an inner upper cap coupled to an upper portionof the inner lower cap and moving a push cap downwards through ascrew-type fastening method when the inner upper cap is rotated, and thepush cap serving as an additive holding member and having on a bottomthereof a thin-plate-type stopper, the bottle cap comprising: an outerprotective cap having a support tube therein so that the inner upper capis fitted into the support tube in such a way as to rotate along withthe outer protective cap, the outer protective cap covering the innerupper cap and a surface of the bottle; and a frictional vibration platerubbing against a frictional plate of the outer protective cap toproduce sound of friction, thus indicating a time at which an additivestarts to drop into the bottle, because the thin-plate-type stopper isbroken, when the inner upper cap moves the push cap down, so that thepush and turn screw is disengaged from the hook screw and the innerupper cap moves up.
 6. The bottle cap as set forth in claim 5, furthercomprising: a decorative toy, integrally fitted over an upper portion ofthe outer protective cap via fitting means.
 7. The bottle cap as setforth in claim 6, wherein the fitting means comprises: a fittingprojection protruding from the toy, and having on an end thereof a hook;and a toy fitting hole provided at a predetermined position in the outerprotective cap, so that the fitting projection is fitted into thefitting hole, thus providing force for supporting the toy.
 8. The bottlecap as set forth in claim 7, wherein the fitting means comprises: asupport hook, bent inwards from a lower end of the toy; and a toysupport groove provided at a predetermined position in the outerprotective cap so that the support hook is inserted into the toy supportgroove.
 9. The bottle cap as set forth in claim 5, further comprising: asupport step, provided on an inner surface of a lower end of the supporttube, and seated between a lower end step, forming a lower end of anouter wall of the inner lower cap, and a tamper resistant band, thussupporting the inner lower cap.